Image / Master violet ray electrotherapy applicator

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Title: Master violet ray electrotherapy applicator
Creator: The Master Electric Co. (Chicago, Ill.)
Contributing Institution: History San Jose Research Library
Collection: History San Jose Online Catalog
Rights Information: Please contact the contributing institution for more information regarding the copyright status of this object.
Description: Glass tube and bulb (likely hand-blown) with metal contact and rod inside base of glass. "MASTER" engraved on metal.
Type: Image
Identifier: 56B0469A-4E21-478C-81CD-960317419610
2003-1-871
Subject: Vacuum-tubes
Nineteen twenties
Diathermy
Medical equipment & supplies
Medical electronics
Medical instruments and apparatus
Electrotherapeutics
Nineteen tens

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